Machine for tapping mains



(No Model.) 2 Sheets-Sheet 1.

W. S. PAYNE.

MACHINE FOR TAPPING MAINS. No. 478,711. Patented July 12,1892.

2 B N Y A P W.

(No Model.)

MACHINE FOR TAP PING MAINS.

Patented July 12 UNITED STATES PATENT OFFICE.

YVALTER S. PAYNE, OF FOSTORIA, OHIO.

MACHINE FOR TAPPING MAINS.

SPECIFICATION forming part of Letters Patent No. 478,711, dated July 12, 1892.

Application filed August 28,1891.

1'0 all whom it may concern.-

Be it known that I, WALTER S. PAYNE, a citizen of the United States, residing at Fostoria, in the county of Seneca and State of Ohio, have invented a new and useful Machine for Tapping Mains, of which the following is a specification.

My invention relates to apparatus for tapping mains; and it has for its object to provide a machine which will efiectively attain the objects for which such devices are used, and particularly to provide a device of this character which can be readily and quickly adjusted upon saddles of different sizes, ac cording to the size of the main to be tapped,

' and which will not only drill and tap against or under the pressure of water or other liquid or gas pipes, but will also provide a support and guide for the drill-shank and tap and the cock to be secured within the tapped main after the drilling of the hole therein has been completed, and means whereby said cock may be easily thrown into position over thedrilled hole and held in such position while being screwed therein; and with these objects in view the invention consists of the improved construction hereinafter more fully described, illustrated in the accompanying drawings, and specifically pointed out in the appended claims.

In the accompanying drawings, Figure 1 is a perspective view, partly in section, of a tapping-machine constructed in accordance with my invention. Fig. 2 is a vertical sectional view taken diagonally across the casing and the swinging crane located therein. Fig, 3 is a similar view, partly in elevation, with the device secured upon a main and the swinging crane holding the cock over the drilled hole and in position for being screwed therein. Fig. 4 is a detail in perspective of the swinging crane and the operating-handle.

Referring to the accompanying drawings, 1 represents the inclosing casing of my device, and the same consists of a hollow casting somewhat elliptical in shape and constructed to accommodate the parts of the machine, which will be hereinafter described. The said casing is provided with a bottom eccentrically-located opening 2, from which depends the downwardly-extending flange 3. The

downwardly-extending flange 3 is designed to Serial No. 403,998. (No model.)

be secured within the collar 4 of the saddle 5 by the pressure secured by the chain and tighteningbolts, said saddle being made of a size to accommodate the size of the main upon which the same is designed to be seated and between which and said saddle suitable gasketsare interposed, when the deviceis clamped upon the main, for the purpose of insuring a perfect water-tight joint, in order that there may be no escape or leak between the jointed parts. The construction of the elliptical casing having an eccentrically-located bottom opening forms a chamber 6, which is designed to accomodate the cock 8 in position and out of the way while the main is being tapped. Directly over the bottom opening 2 in the bottom of said casing the same is provided dinary stufling-box 14, having an interior bore of the same diameter as the drill-rod 11, which slides and works therein, and thus insures a water-tight joint. The said clamp 13 is provided with the opposite lateral ribs 15, to which are pivotally secured the clevises 16, internally threaded to accommodate one end of the right-and-left screw-threaded adjusting-bolts 17, which engage said clevises and the inner ends of the chain-harps 18, provided with enlarged openings 19, terminating in re- Secured to the top duced elongated openings 20, that are designed, after the links of the chain 21 are inserted in the enlarged openings of the harps, to receive the said links edgewise and thus securely hold thechain in position beneath the main which the same encircles and prevents the same slipping, while the adj ustingbolts secure the device upon the main as tightly as may be desired. The said clamp 13 is further provided with the laterally and 0p positely extending engaginglugs 22, upon which the feeder-yoke 23 may be removably attached. The said feeder-yoke is provided the action of the ordinary pawl-and-ratchet lever 28, which is of the usual construction and forms no part of the present invention. Asemicircular enlargement 29 is formed upon one side of the casing 1, near the topedge thereof and intermediate of the chamber or recess 6 therein and the portion of the casing The uppere-n-d of said-enlargementis provided with a screw-perforation 30, that isdesigned to receive the stuffing-box 30, which receivesa rotating stem or shaft 31, which revolves therein. The lower end of the said stem is provided with a squared portion 32, while its upper end,witho-nt thestuiiing-box 30, secured in the perforation 30-, is provided with the operating handle or lever 84, hinged near its connection with-said stem at 35, whereby the same when not in use may be folded over upon itself and out of the way when not inoperation, and thishan-dle, touching the outside of the neck 10, prevents the cock from swinging back in the way of the drill. An interiorlythreaded ring or crane 36 is provided with an extended perforated lug 37, having a squared perforation 38 therein, that is designed to receive the squared end 32 of the rotating shaft or stem 31 within said semicircular enlarge mentor recess 29, which is of suffi'ci'ent size toaccommodate the enlarged perforated lug 37 of the said threaded ring or crane and isprovided in the bottom thereof with a bearing-recess39, that is adapted to receive the lower end of said operating stemor shaft just referred to. In its normal position the said crane or ring is adapted to be located near the top of the in-closed recess or chamber 6 of the casing of the machine and is adapted to receive and hold the internally and exteriorlythreaded mandrel 40, within which is screwed the cock 8, which is adapted to be held vertically within said recess 6- and supported therein by said mandrel. After having drilled the hole in the main and tapped the same the combined tapand drill is drawn up into the machine as far as possible through the neck and stuffing-box, through which the same works. The operating handle or lever is then opened and the crane or ring isswu-ng around over the opening 2 in the bottom of the casing, so that the cock and the mandrel carried thereby comes immediately under the tap and drill, The-said tap and drill is then pushed down and screwed into the mandrel until it becomes tight therein, and by conti-nuing' the screwing of'the tap and drill the mandrel carrying the cock is screwed out of the crane. When it is thus released, thecock is pushed down into the opening in the main and screwed therein by means of the tap, using, of course, the ratchet to turn it with. Having now loosened up the chain and taken the machine on? the main, a wrench is then put onto the cock to screw the same securely into the main, after which the tap and mandrel may be readily unscrewed from the top of the cock.

The construction and operation of the herein-described device for tapping mains is now thought to be apparent without further description.

Having thus described my invention, what Iclaim, and desire to secure by Letters Patent, isin which the combined tap and drill Works.

1. In a machine for tapping mains, the combination, with a casing and the tapping mechanism working therein, of a swinging'threadt ed ring-crane adapted to be independently j oscillated horizo'ntallywithi'n said casing and carrying the cock, and means for removing said cock from the ring-crane by the tap-ping mechanism, substantially as set forth.

2. In a machine for tapping mains, a casing having an eccentrically-located bottom opening, an offstanding chamber and an upwardly extending neck directly over said opening, the tapping mechanism working in said neck and carrying the threaded tap, an independent swinging ring-crane mounted in said 06- standing chamber and adapted to Work independently of the tapping mechanism below and away'from said neck,vand a cock-mandrel removably'engagin g andc-arried by said crane, said mandrel accommodating thecock and re ceivling the threaded tap, substantially as set fort 1.

3-. In a machine for tappingm'ains, the com bination, with the casing and the tapping mechanism carrying a threaded tap, of" an oscillating stem or shaft secured within said casing and rotated entirely independent of the tapping mechanism, a threaded ring-crane connected with and swung within the casing by said shaft, and an interiorly and exteriorly threaded cock-mandrel removably engaging and carried by said crane, said mandrel ac= commodating the cock and receiving the threaded tap, substantially as set forth".

4.. In a machine fortapping mains, a casing having a semicircular enlargement upon one side thereof, an oscillating shaft supported and j'ournaled within said enlargement, a hinged handle or lever secured to the upper and outer end of said shaft, an interioriythreaded ri'ngcrane having an enlarged perforated lug adapted to engage said shaft within said enlargement, and an externally and interiorly threaded cock-carrying man'- drel removably engaging said ring-crane and itself engaged by the tapping mechanism which removes the same from the crane and screws the cock into the main, substantially as set forth.

5. In a machine for" tapping mains, a casing IIO over said opening, a clamp secured upon said neck and having opposite ribs and engaginglugs, clevises pivoted to said ribs, chain harps adj ustably connected with said pivoted clevdrilling mechanism working therein, of the screw-threaded clevises pivotally secured to I opposite sides of said casing, harp -'shaped chain clamps having threaded perforations, and right-and-left screw-threaded adjustingbolts adj ustably engaging the threaded perforations of said clevises and harps, substantially as set forth.

In testimony that I claim the foregoing as my own I have hereto affixed my signature in presence of two Witnesses.

. WALTERS. PAYNE. Witnesses:

FRANK STOUT, MAHLON CARE. 

